Industrial-grade 100W servo motor with 100V operation and 2.2A current rating for precision motion control applications.
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The torque vs. speed and output power curves are dependent on the motor's supply voltage. Performance specifications assume continuous operation at 20°C ambient temperature under nominal conditions.
Voltage Variation Effects
Motors can typically operate with supply voltages ranging from -50% to +100% of recommended voltage:
• Lower voltage reduces motor power output
• Higher voltage increases power but requires intermittent operation due to heat generation
• For voltage variations between -25% to +50%, torque-speed characteristics remain parallel with proportional changes to start-up torque and no-load speed
Performance Calculation Example
With 20% voltage increase:
• Start-up torque: +20% (×1.2)
• No-load speed: +20% (×1.2)
• Output power: +44% (×1.44)
Torque-Current Relationship
The torque-current characteristic is independent of supply voltage. The relationship is defined by the torque constant:
Kc = Cd / (Id - Io)
Where torque is calculated as: C = Kc (I - Io)
Rotational friction torque: Cf = Kc Io
Complete torque equation: C = Kc I - Cf
Variable Definitions:
Kc = Torque constant (Nm/A)
C = Torque (Nm)
Cd = Start-up Torque (Nm)
Cf = Rotational friction torque (Nm)
I = Current (A)
Io = No-load current (A)
Id = Start-up current (A)
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